1999 Olds Intrigue (3.5 L V-6, DOHC, automatic trans, 105 k miles)- engine quits at idle(or almost quits) after driving a few miles (driven almost enough for thermostat to open). It starts back without a problem (no missing, no rough idle). If driving when this happens, it "jumps" but engine does not stop. When engine is cold, it idles/runs fine. When warmed up fully, it idles/runs fine. What causes this problem.

engine quits running while in drive at an idle like the ignition was turned off! no rough idle at all before it quits!engine quits running while in drive at an idle like the ignition was turned off! no rough idle at all before it quits!

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it may be a bad tps ( throttle position sensor ). it causes transmission shift issues, bucking,jerking, idle surging, engine cut off, surge while crusing down highway. if this does not solve problem, it may be a sticking valve body in transmission. have a good day !! for an automatic tranny.

No, do not junk it, those transmissions (4L60) are all over the place, and with only 12,000 miles the engine and body are probably in very good condition-you have a 3.8 engine, and that is a very durable engine. You can get a trans out of a car at a junkyard, check Craigslist or ebay, and find someone who would install it-probably could do the whole thing for less than $800 if you do a little research. I have a 00 Intrigue with a 3.5, 135,000 miles, and it is a great car-I just drove it cross country from outside Philadelphia to Los Angeles, in 2 1/2 days (2900 miles) and got over 30 mpg-that car you have is worth saving in my opinion.

you may want to check for a vacuum leak, there should be a vacuum line that goes from the throtle body to the tranmission, it may be cracked. I had the same problem with my 03 Impala and it was the vacuum hose was cracked.

I have a 99 olds intrigue 3.8l Autozone computer states poor electrical connection or short circuit, or failed vehicle spped sensor or drive gear mechanical fault. speedometer works sometimes and drives great next time it raises rpm and speedometer does not work. Where is the speed sensor or where is the elctrical circuit I can check to see if connections are good.